[MAPREDUCE-6489] Fail fast rogue tasks that write too much to local disk

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.7.1
• Fix Version/s: 2.8.0, 3.0.0-alpha1
• Component/s: task
• Target Version/s: 2.7.1
• Hadoop Flags: Reviewed
• Assignee: Maysam Yabandeh
• Reporter: Maysam Yabandeh
• Created: 23/Sep/15 18:45
• Updated: 08/Dec/17 04:30
• Resolved: 21/Oct/15 17:12

Description

Tasks of the rogue jobs can write too much to local disk, negatively affecting the jobs running in collocated containers. Ideally YARN will be able to limit amount of local disk used by each task: YARN-4011. Until then, the mapreduce task can fail fast if the task is writing too much (above a configured threshold) to local disk.

As we discussed here the suggested approach is that the MapReduce task checks for BYTES_WRITTEN counter for the local disk and throws an exception when it goes beyond a configured value. It is true that written bytes is larger than the actual used disk space, but to detect a rogue task the exact value is not required and a very large value for written bytes to local disk is a good indicative that the task is misbehaving.

Issue Links

• is related to: TEZ-3821 Ability to fail fast tasks that write too much to local disk
• is related to: MAPREDUCE-7022 Fast fail rogue jobs based on task scratch dir size